New to JSP, where to start?

Hi all,
I decided to take a look at JSP and was wondering what things I need to install/configure to get an environment running. What are your recommendations for a webserver, editor, online resources etc.
I'm fairly experienced with PHP and ASP programming and have 2-3 years background in OOP.
thanks for your time!
regards,
Christophe

I decided to take a look at JSP and was wondering
what things I need to install/configure to get an
environment running. What are your recommendations
for a webserver, editor, online resources etc.(1) Download the Tomcat servlet/JSP engine from Jakarta Apache:
http://jakarta.apache.org/tomcat
(2) Download the JSP Standard Tag Library, also from Jakarta Apache (you'll want version 1.1 to go with Tomcat 5.5):
http://jakarta.apache.org/taglibs
(3) Go buy Hans Bergsten's JSP book from O'Reilly. I think it's the best, because it uses JSTL from the first page. That's the proper way to learn how to write JSPs.
%

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import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.text.NumberFormat;
import java.util.StringTokenizer;
// Still to be fixed:
// 1. Purchase & Maintenance buttons.
// 2. fix repaint of pictures, they don't display until a repaint is hit.
// 3. fix the Quit from program, it doesn't work right.
// 4. Put in the code for doing Maintenance.
// 5. Button super.setSize
// 6. Animate picture on selection.
public class VendMach extends Applet implements ActionListener
// Fonts for text and buttons.
private Font boldSerif16 = new Font("Serif",Font.BOLD,16);
private Font boldSerif24 = new Font("Serif",Font.BOLD,24);
private Font boldItalicSerif24 = new Font("Serif",Font.BOLD+Font.ITALIC,24);
private Font boldItalicSerif13 = new Font("Serif",Font.BOLD+Font.ITALIC,13);
private Font boldItalicSerif40 = new Font("Serif",Font.BOLD+Font.ITALIC,40);
//%% private Font boldItalicDialog16 = new Font("Dialog",Font.BOLD+Font.ITALIC,16);
// Mode flag.
private int mode = 0;
// Panels for the buttons
private Panel mainPanel = new Panel();
private Panel cashPanel = new Panel();
private Panel selPanel = new Panel();
private Panel maintPanel = new Panel();
// Product selection panel buttons
private Button selBtn[] = new Button[6];
// Cash customer puts in machine panel buttons
private Button viewC = new Button("View The Products");
private Button quit = new Button("Quit");
private Button bNickle = new Button("Nickel");
private Button bDime = new Button("Dime");
private Button bQuarter = new Button("Quarter");
private Button b$Paper = new Button("$1 Paper");
private Button b$Coin = new Button("$1 Coin");
private Label lCredit = new Label(" Credit:");
private Label lMsg = new Label("");
private Button bChange = new Button("Change Return");
private Button purchase = new Button("Purchase");
private Button maintenance = new Button("Maintenance");
private Product productForSale [];
private CashIn changeOH;
private int $collected = 0;
private double total$In = 0.00;
private NumberFormat nf;
private Image pic;
private Image picAnim;
private int prodSel = 999;
private String line;
private String f[] = new String[8];
private int tokenCount;
private int int3, int4, int5, int6, int7;
private double dbl4;
private StringTokenizer strings;
private int dispense = 99;
public void init()
{ setLayout(new BorderLayout());
productForSale = new Product[6];
try
{ BufferedReader inPut = new BufferedReader(new FileReader("Vend_Machine.txt"));
while ((line=inPut.readLine()) != null)
{ strings = new StringTokenizer(line,",");
tokenCount = strings.countTokens();
// Loop thru and retrieve each data element.
for (int i=0; i<tokenCount; i++)
f[i] = strings.nextToken();
// Load the money.
if (f[0].compareTo("M") == 0)
{ int3 = Integer.parseInt(f[3]);
int4 = Integer.parseInt(f[4]);
int5 = Integer.parseInt(f[5]);
int6 = Integer.parseInt(f[6]);
int7 = Integer.parseInt(f[7]);
changeOH = new CashIn(f[1],f[2],int3,int4,int5,int6,int7);
// Load the products.
if (f[0].compareTo("P") == 0)
{ int3 = Integer.parseInt(f[3]);
dbl4 = (new Double(f[4])).doubleValue();
int5 = Integer.parseInt(f[5]);
int6 = Integer.parseInt(f[6]);
int7 = Integer.parseInt(f[7]);
productForSale[int3] = new Product(f[1],f[2],dbl4,int5,int6,int7);
inPut.close();
catch(IOException e)
{ e.printStackTrace();
setBackground(Color.pink);
setForeground(new Color(120,0,120));
setFont(boldSerif16);
cashPanel.setLayout(new GridLayout(10,1));
cashPanel.add(viewC);
cashPanel.add(quit);
cashPanel.add(bNickle);
cashPanel.add(bDime);
cashPanel.add(bQuarter);
cashPanel.add(b$Paper);
cashPanel.add(b$Coin);
cashPanel.add(lCredit);
cashPanel.add(lMsg);
cashPanel.add(bChange);
add(cashPanel,"East");
selPanel.setLayout(new GridLayout(1,6));
for (int i=0; i<6; i++)
{ selBtn[i] = new Button(productForSale.getName());
selPanel.add(selBtn[i]);
add(selPanel,"South");
setBackground(Color.black);
viewC.addActionListener(this);
quit.addActionListener(this);
bNickle.addActionListener(this);
bDime.addActionListener(this);
bQuarter.addActionListener(this);
b$Paper.addActionListener(this);
b$Coin.addActionListener(this);
bChange.addActionListener(this);
nf = NumberFormat.getCurrencyInstance();
for (int i=0; i<6; i++)
selBtn[i].addActionListener(this);
} // =======>> END OF INIT METHOD
// ** PAINT METHOD **
public void paint(Graphics g)
{ int xVal = 35;
int yVal = 85;
int xValAnim = 0;
int yValAnim = 0;
int c = 0;
// Paint the product pictures on the vending machine.
g.setColor(Color.cyan);
g.setFont(boldItalicSerif24);
g.drawString(changeOH.getLogo1(),115,40);
g.setFont(boldItalicSerif13);
g.drawString(changeOH.getLogo2(),200,60);
for (int z=0; z<2; z++)
{ xVal = 35;
yVal = 85;
c = 0;
g.setColor(Color.black);
g.fillRect(xVal,yVal,500,350);
g.setColor(Color.yellow);
for (int i=0; i<2; i++)
{ for (int j=0; j<3; j++)
{ g.setFont(boldSerif16);
g.drawString(nf.format(productForSale[c].getPrice()),xVal+45,yVal-5);
pic = getImage(getCodeBase(),productForSale[c].getPic());
g.drawImage(pic,xVal,yVal,null);
// If product is dispensed get ready to animate.
if (c == dispense)
{ xValAnim = xVal;
yValAnim = yVal;
picAnim = pic;
xVal = xVal + 170;
c++;
yVal = yVal + 160;
xVal = 35;
// If product is dispensed, animate it.
if (dispense < 99)
{ for (int y=0; y<40; y++)
{ g.setColor(Color.black);
g.fillRect(xValAnim,yValAnim-9,125,125);
g.setColor(Color.yellow);
g.drawImage(picAnim,xValAnim,yValAnim,null);
yValAnim = yValAnim + 10;
pause(3);
dispense = 99;
if (mode == 0)
{ pic = getImage(getCodeBase(),"OutStock.gif");
g.drawImage(pic,300,300,null);
g.setColor(Color.black);
g.fillRect(1,1,500,300);
g.setColor(Color.pink);
g.setFont(boldItalicSerif40);
g.drawString(changeOH.getLogo1(),10,150);
g.setFont(boldItalicSerif24);
g.drawString(changeOH.getLogo2(),160,250);
mode++;
} // =======>> END OF PAINT METHOD
// ** ACTIONPERFORMED METHOD **
public void actionPerformed(ActionEvent event)
{ Object source = event.getSource();
lMsg.setText(" Enter up to $1.00");
// Customer puts money in the vending machine.
// Customer paid a nickle
if (source == bNickle && $collected < 96)
{ changeOH.nickleIn();
$collected = $collected + 5;
// Customer paid a dime
if (source == bDime && $collected < 91)
{ changeOH.dimeIn();
$collected = $collected + 10;
// Customer paid a quarter
if (source == bQuarter && $collected < 76)
{ changeOH.quarterIn();
$collected = $collected + 25;
// Customer paid a paper dollar
if (source == b$Paper && $collected == 0)
{ changeOH.dollarPaperIn();
$collected = $collected + 100;
// Customer paid a coin dollar
if (source == b$Coin && $collected == 0)
{ changeOH.dollarCoinIn();
$collected = $collected + 100;
// Customer makes their product selection.
for (int i=0; i<6; i++)
{ if (source == selBtn[i])
// Do nothing if customer selects item that isn't on-hand.
if (productForSale[i].getOnHand() == 0)
repaint();
// We have product on-hand.
else
{ prodSel = i;
// Tell customer to add more money if they don't have
// enough in the machine to handle the purchase.
if ($collected < (int) (productForSale[i].getPrice() * 100))
{ lMsg.setText(" Insert Money");
// Customer has enough money in machine to cover purchase.
else
{ // Take cost of item from customer's money
dbl4 = productForSale[i].getPrice() * 100;
int4 = changeOH.giveChange($collected - (int)dbl4,0);
// Tell customer to put exact amount in the machine
// because there isn't enough change to handle purchase.
if (int4 == 9)
{ lMsg.setText("Exact Amount Only!");
// **** Here the purchase was made and committed. ****
else
{ total$In = productForSale[i].getPrice() * 100;
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productForSale[i].sellProduct();
dispense = i;
repaint();
// If the last product item was sold, set picture to OutStock.gif.
if (productForSale[i].getOnHand() <= 0)
productForSale[i].setOutOfStock();
if ((source == bChange || source == quit) && $collected > 0)
{ $collected = changeOH.giveChange($collected,1);
// Here we save the machine info file when customer asks
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// Customer has selected to Quit the vending machine program.
// Quit the program.
if (source == quit)
System.exit(0);
// These commands set up variables to show how much money
// the customer has in the machine.
total$In = $collected;
total$In = total$In / 100;
lCredit.setText(" Credit: " + nf.format(total$In));
repaint();
} // =======>> END OF ACTIONPERFORMED METHOD
// ** PAUSE METHOD **
public void pause(int i)
{ for(long l = System.currentTimeMillis() + (long) i; System.currentTimeMillis() < l;);
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// ** CASHIN CLASS **
class CashIn
{ private String logo1;
private String logo2;
private int numProd;
private int nickles;
private int dimes;
private int quarters;
private int dollarsP;
private int dollarsC;
private int money;
private double moneyVal;
private int amtToChange = 0;
private int hNickle;
private int hDime;
private int hQuarter;
private int hpDollar;
private int hcDollar;
public CashIn(String l1, String l2, int p, int q, int d, int n, int dP)
{ logo1 = l1;
logo2 = l2;
numProd = p;
quarters = q;
dimes = d;
nickles = n;
dollarsP = dP;
dollarsC = 0;
money = (n * 5) + (d * 10) + (q * 25) + (dP * 100);
// Get total of money in machine.
public double getCashIn()
{ moneyVal = money;
moneyVal = moneyVal / 100;
return moneyVal;
// Get machine record information.
public String getLogo1()
{ return logo1;
public String getLogo2()
{ return logo2;
public int getNumProd()
{ return numProd;
public int getNickles()
{ return nickles;
public int getDimes()
{ return dimes;
public int getQuarters()
{ return quarters;
public int getDollarPaper()
{ return dollarsP;
public int getDollarCoins()
{ return dollarsC;
// Money comes into the machine
public void nickleIn()
{ nickles++;
money = money + 05;
public void dimeIn()
{ dimes++;
money = money + 10;
public void quarterIn()
{ quarters++;
money = money + 25;
public void dollarPaperIn()
{ dollarsP++;
money = money + 100;
public void dollarCoinIn()
{ dollarsC++;
money = money + 100;
// Give the customer their change.
public int giveChange(int custMoney, int mode)
{ hNickle = nickles;
hDime = dimes;
hQuarter = quarters;
hpDollar = dollarsP;
hcDollar = dollarsC;
amtToChange = custMoney / 100;
for (int i=0; i<amtToChange; i++)
{ // Give change in dollar coin if possible
if (hcDollar > 0)
{ hcDollar--;
custMoney = custMoney - 100;
// or else give change in paper dollar
else
{ if (hpDollar > 0)
{ hpDollar--;
custMoney = custMoney - 100;
amtToChange = custMoney / 25;
for (int i=0; i<amtToChange; i++)
{ if (hQuarter > 0)
{ hQuarter--;
custMoney = custMoney - 25;
amtToChange = custMoney / 10;
for (int i=0; i<amtToChange; i++)
{ if (hDime > 0)
{ hDime--;
custMoney = custMoney - 10;
amtToChange = custMoney / 5;
if (amtToChange > hNickle)
{ mode = 9;
for (int i=0; i<amtToChange; i++)
{ hNickle--;
custMoney = custMoney - 5;
if (mode == 1)
{ nickles = hNickle;
dimes = hDime;
quarters = hQuarter;
dollarsP = hpDollar;
dollarsC = hcDollar;
money = money - custMoney;
if (mode == 9) custMoney = 9;
return custMoney;
} // =======>> END OF CASHIN CLASS
// ** PRODUCT CLASS **
class Product
{ private String name;
private String image;
private String picUsed;
private double price;
private int onHand;
private int sold;
private int maint;
public Product(String n, String i, double p, int o, int s, int m)
{ name = n;
image = i;
picUsed = i;
price = p;
onHand = o;
sold = s;
maint = m;
// Reset picture used when product is out of stock.
public void setOutOfStock()
{ picUsed = "OutStock.gif";
// Get product information
public String getName()
{ return name;
public String getImage()
{ return image;
public String getPic()
{ return picUsed;
public double getPrice()
{ return price;
public int getOnHand()
{ return onHand;
public int getQtySold()
{ return sold;
public int getMaintDate()
{ return maint;
// Sell one of the product.
public void sellProduct()
{ onHand--;
sold++;
// Set the product values.
public void setName(String n)
{ name = n;
public void setImage(String i)
{ image = i;
picUsed = i;
public void setPrice(double p)
{ price = p;
public void setOnHand(int o)
{ onHand = o;
public void setQtySold(int s)
{ sold = s;
public void setMaintDate(int m)
{ maint = m; }
this is the text file
p,Fritos,Images/FritoLay.gif,
m,$.50,
p,Dr. Pepper,Images/Dr.Pepper.gif,
m,$.60,
p,Pepsi,Images/Pepsi.gif,
m,$.60,
p,Coke,Images/CocaCola.gif,
m,$.60,
p,Seven-Up,Images/7-Up.gif,
m,$.60,
p,Sprite,Images/Sprite.gif,
m,$.60,
c,10,20,40,
i know that the filereader is supposed to read the fields...i guess i just have a weak start on understanding and implementing arrays.

I write this sample some time ago, you can use it to start a new project
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class CVM extends JFrame
 JTextField mw = new JTextField("0");
 JTextField hf = new JTextField("0");
 JTextField ds = new JTextField("0");
 JTextField lr = new JTextField("0");
 JTextField py = new JTextField("0");
 JTextField tp = new JTextField("0");
 JTextField ch = new JTextField("0");
public CVM()
 super("Chocolate Vending Machine");
 setBounds(0,0,500,400);
 addWindowListener(new WindowAdapter()
 { public void windowClosing(WindowEvent ev)
 dispose();
 System.exit(0);
 JPanel pan = new JPanel();
// pan.setLayout(new GridLayout(0,2,4,4));
 JPanel lp = new JPanel();
 lp.setBackground(Color.pink);
 lp.setLayout(new GridLayout(16,2,4,4));
 addButton(lp,"Milky Way 20$",mw);
 addButton(lp,"Hot Fudge 40$",hf);
 addButton(lp,"Dandy Shandy 50$",ds);
 addButton(lp,"Lovers Rock 80$",lr);
 addClearButton(lp);
 lp.add(new JLabel(""));
 lp.add(new JLabel(""));
 addPayButtons(lp);
 addMoneyBack(lp);
 pan.add(lp);
 setContentPane(pan);
 setVisible(true);
private void addPayButtons(JPanel pan)
 JPanel lp = new JPanel();
 lp.setOpaque(false);
 lp.setLayout(new GridLayout(0,2,4,4));
 JButton b1 = new JButton("Pay 5");
 addPay(b1,5);
 b1.setMargin(new Insets(0,0,0,0));
 JButton b2 = new JButton("Pay 10");
 addPay(b2,10);
 b2.setMargin(new Insets(0,0,0,0));
 lp.add(b1);
 lp.add(b2);
 pan.add(lp);
 lp = new JPanel();
 lp.setOpaque(false);
 lp.setBackground(Color.cyan);
 lp.setLayout(new GridLayout(0,2,4,4));
 JButton b3 = new JButton("Pay 20");
 addPay(b3,20);
 b3.setMargin(new Insets(0,0,0,0));
 JButton b4 = new JButton("Pay 50");
 addPay(b4,50);
 b4.setMargin(new Insets(0,0,0,0));
 lp.add(b3);
 lp.add(b4);
 pan.add(lp);
 pan.add(new JLabel(" Payd"));
 pan.add(py);
private void addPay(JButton bt, final int i)
 bt.addActionListener(new ActionListener()
 { public void actionPerformed( ActionEvent e )
 int n = Integer.parseInt(py.getText())+i;
 py.setText(""+n);
 calculate();
private void addButton(JPanel pan, String s, final JTextField jt)
 JButton bt = new JButton(s);
 bt.setHorizontalAlignment(SwingConstants.LEFT);
 bt.setMargin(new Insets(0,0,0,0));
 pan.add(bt);
 bt.addActionListener(new ActionListener()
 { public void actionPerformed( ActionEvent e )
 int i = Integer.parseInt(jt.getText())+1;
 jt.setText(""+i);
 calculate();
 jt.setHorizontalAlignment(SwingConstants.CENTER );
 jt.setEditable(false);
 jt.setBackground(Color.white);
 pan.add(jt);
private void calculate()
 int nwi = Integer.parseInt(mw.getText()) * 20;
 int hfi = Integer.parseInt(hf.getText()) * 40;
 int dsi = Integer.parseInt(ds.getText()) * 50;
 int lri = Integer.parseInt(lr.getText()) * 80;
 int t = nwi+hfi+dsi+lri;
 if (t >= 100) t = t - (t/10);
 tp.setText(""+t);
 int n = Integer.parseInt(py.getText());
 int c = n-t;
 ch.setText(""+c);
private void addClearButton(JPanel pan)
 pan.add(new JLabel(" To pay"));
 pan.add(tp);
 JButton bt = new JButton("Clear");
 bt.setHorizontalAlignment(SwingConstants.CENTER);
 bt.setMargin(new Insets(0,0,0,0));
 pan.add(bt);
 bt.addActionListener(new ActionListener()
 { public void actionPerformed( ActionEvent e )
 mw.setText("0");
 hf.setText("0");
 ds.setText("0");
 lr.setText("0");
 tp.setText("0");
 pan.add(new JLabel(""));
private void addMoneyBack(JPanel pan)
 JButton bt = new JButton("Money back");
 bt.setHorizontalAlignment(SwingConstants.CENTER);
 bt.setMargin(new Insets(0,0,0,0));
 pan.add(bt);
 bt.addActionListener(new ActionListener()
 { public void actionPerformed( ActionEvent e )
 py.setText("0");
 ch.setText("0");
 pan.add(new JLabel(""));
 pan.add(new JLabel(" Change"));
 pan.add(ch);
public static void main( String[] args)
 new CVM();
}Noah

New to JSP, where to start?

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